At the end of the Tang Dynasty, Zhu Wen usurped the Tang Dynasty and established the Liang Kingdom. Zhu Wen killed Tang Zhaozong and his children, and the Li Tang royal family was massacred. Only the princess Li Yu and the prince Li Yu survived.
Zhao Yinheng, a close confidant of Zhu Wen, adopted Li Yu as his adopted daughter and changed her name to Zhao Ziyi. The reason for the adoption was to pity the young girl, but the real purpose was to capture and kill the emperor's eldest son, Li Yu, the king of De, who had fled away. Zhao Yinheng kept Li Wei as a hostage in the Zhao Mansion, expecting that King De would definitely look for his sister when he came back for revenge, so he came up with this plan.
Li Ao, the son of Prime Minister Li Zhen of the Liang Dynasty, was romantic and wise. His ideal since he was a child was to be loyal to the Tang Dynasty. At this time, he did not change his original intention. He placed his ideal on the Princess of the Tang Dynasty who lived in seclusion in Zhao Mansion. The two cherished each other and made a lifelong agreement.
It was rumored that Li Yu came back for revenge, and Li Yu wanted to reunite with his imperial brother and leave Liangdu together. The Liang princes Zhu Youzhen and Zhao Yinheng also took action. Li Yu was in danger, but fortunately he was rescued by Li Ao. Only then did I find out that the news of the emperor's brother's return was spread by Zhao Yinheng. It was a conspiracy. There were some secrets about the emperor's brother...